wheeler



0. WHEELER, Jr. Machine for Separating Magnetiofrom Non-Magnetic Substances. No. 238,737. Patented March 8,1881.

ZTTORJVEY N.PE1ERS, PHOTO-LJTRQGRAF WASHINGTON. D C.

Darren STATES OYRENUS WHEELER, JR,

PATENT @rrrha.

OF AUBURN, NEW YORK.

SPECIFICATION forming part of Letters Patent No. 238,737, dated March 8, 1881.

Application filed February 14, 1879.

To all whom it may concern:

Be it known that I, OYRENUs WHEELER, J r., of Auburn, county of Cayuga, State of New York, have invented certain new and useful Improvements in Machines for Separating Magnetic from Non-Magnetic Substances, of which the following is a full, clear, and exact description, reference being had to the accompanyin g drawings, making part of this specification, in which Figure 1 represents a vertical section through my improved apparatus. Fig. 2 is a perspective view of one of the gangs of magnets employed; and Fig. 3 is a plan or top view, showing the relative arrangement of the magnets of the different gangs.

Similar letters of reference denote like parts in all the figures.

The invention relates to a novel arrangement of magnets in an inclined chute, through or over which the material to be operated upon passes, said material being in a granular, pulverized, or minutely-divided condition, adapting the magnets, in its passage by or between them, to extract the magnetic particles therefrom. It has especial reference to the removal of broken bits of band-wire, nails, &c., from grain, but is equally applicable to other substances or materials in the condition named containing portions of magnetic material to be extracted and removed.

The invention consists in a novel manner of suspending the magnets in rows or gangs within an inclined chute, through which the grain or other material to be operated upon passes or is fed, in an attenuated stream, in such manner that the material will pass under and between the magnets, adapting the latter to pick up or catch and hold the magnetic substances, while the non-magnetic material passes freely by or between the magnets and escapes at the end of the chute.

It further consists in arranging the magnets in one gang opposite the spaces between the magnets of the preceding gang in the chute in such manner as to leave ample space between the magnets of each row or gang for the passage of the material operated upon, while efi'ectually preventing the escape of any magnetic material which by any possibility may have escaped the action of the preceding gang or gangs of magnets.

In the accompanying drawings, A represents a hopper for the reception of the material to be operated upon, said hopper terminating in an inclined chute, B, through which the grain or other material to be operated upon escapes from the hopper. At any convenient point in its length the chute is provided with a vertical or pendent slide, 0, the

degree of elevation of which above the bottom of the chute serves to regulate the escape of the material through the chute, and to cause it to pass over the bottom of the chute in an attenuated evenly-spread stream.

Below the slide 0 in the chute are a number of magnets, 61 41, made, by preference, in the horseshoe-form shown, though otherforms may be employed, if desired. These magnets are arranged in rows or gangs D D, (two or more,) those in each row being spaced or separated by intervening blocks or strips of wood, 6, with outside strips or blocks, E, applied, and all in a single row or gang, united by a through-bo1t,f, or other suitable clamping device. The outside blocks or strips, E, rest upon the side boards of the chute, and serve to suspend the magnets within the chute, with the ends of their arms in close proximity with the bottom thereof, as shown in Fig. 1.

By reference to Fig. 3 it will be seen that the magnets of one gang or row, D, are set opposite the spaces between those of the adjacent or preceding row, D. By this arrangement sufficient space is left between the magnets of each gang to permit the ready passage of the material operated upon, while any magnetic substances which, by any possibility, might escape the action of the magnets in one row will necessarily be thrown into contact, or in close proximity with, and will be picked up or caught and held by, those of the succeeding row.

At suitable intervals the flow of the material operated upon can be stopped by forcing the slide 0 down upon the bottom of the chute, and the gangs can be removed and freed from the magnetic substances collected upon them, then replaced, and the operation resumed.

Having now described my invention, what I claim as new, and desire to secure by Letters magnets, having the magnets d of one gang :0 Patent, is arranged to alternate with or set opposite to 1. The magnets arranged in rows or gangs the spaces between the magnets d of the adand suspended Within the inclined chute jaeent row or gang, substantially as and for 5 through which the material to be operated the purpose described.

upon passes for efi'ecting'the separation of the V 0. WHEELER, J R. magnetic and non-magnetic substances, sub- WVitnesses: I stantially as described. ALEXANDER MonoN,

2. The gangs or rows D D of suspended JOHN G. CENTER. 

